Blank-making



C. D. KNOWLTON Aug. 14, 1934.

' BLANK MAKING Original Filed Sept. 8, 1930 2 Sheets-Sheet l A VE/VTUR'mm Mm g- 14, 1934- c. D. KNOWLTON I 1,969,849

BLANK MAKING Original Filed Sept. 8, 1930 2 Sheets-Sheet 2 Fig. 2

Patented Aug. 14, 1934 UNl'lED STATES 1.969.848 BLANK-MAKING Cutler D.Knowlton. Beverly, Mal... alrignor to Hoague-Sprague Corporation, Lynn,Mala, a corporation of Massachusetts Original application September 8,1980, Serial No.

480,518. 1932, Serial No. 808,803

Divided and this application April 21,

9 Claims. (01. 93-66) My invention concerns the making of blanks, havingespecial reference to the production of blanks from'which are to beformed boxes such as are used for containing pairs of shoes.

In an application filed in my name in the United States Patent Qflice onSeptember 8, 1930, bearing the Serial No. 480,518, of which vthe presentcase is a division, thereis described an apparatus in which webs ofmaterial are ad- 10 vanced continuously through successive mechanismsfor various forming operations. These webs include one of pasteboard orother shellmaterial, furnishing the body of the blank, and one or moreothers, of paper or the like, by

which the longitudinal shell-edges are stayed. An object of thisinvention is to provide for an unceasing supply of this stay-material tothe shell-material and in the correct relation transversely of thelatter.

go With this object in view, a feature of the invention may be found inan apparatus having a support for shell-material and mechanism foroperating on such material, together with s rotatable carrier arrangedto receive a plurality of reels of stay-material positioned forco-operation with a margin of the shell-material and to be appliedthereto during its advance, and means for securing the carrier with onereel in position for delivery to the margin of the shell-material go andanother reel ready for transfer to the delivering position. There maythus be kept always ready for combination with the shell-material a reelof the stay-material, a latch being shown for selectively holding onereel or another 3' in the delivering relation. To facilitate thesplicing of the stay-material from a reel-coil approaching exhaustion toafull coil, so the formation of the blanks may go on withoutinterruption, I associate with the carrier pressure means, as a pair ofrolls, through which the stay-material travels from its reel to theoperating mechanism and prior to its application to the shell-material.This promotes more perfect adhesion of the splice without delaying theadvance of the web. To product proper registration of the reel and itscontents in use with the margin of the shell-material, each of the reelsmaybe movable transversely of the path of the stay-material, as bymounting them upon 5 spindles projecting from carrier-arms and providingmeans, for example a screw threaded into each arm and having a portionengaging a slot in the spindle, for moving the reel longitudinally ofits spindle.

. 56 A further feature of the invention involves a stay-material whileits delivery and combination v with the shell-material continue, andconnect the end of the unusedcoil of stay-material to that advancingfromthe companion coil. The necessary registration may be establishedbetween the stay-material and the margin of the shell-material to whichit is to be applied by moving the stay-coil transversely of the web ofshell-material. In making the connection between the diminishing coiland fresh coil, an adhesive is best used, and the connection issubjected to pressure, as to the action of pressure members, to promoteadhesion, and the web .of the diminishing coil is preferably severedafter said connection has passed the pressure members. At such time, afirm union has been established, and the act of separating the unusedend from the advancing material will not disturb it.

One of the several possible embodiments of the apparatus of my inventionis illustrated in the accompany drawings, in which Fig. 1 shows myimproved reel-support and associated elements in broken side-elevation;

Fig. 2 is an enlarged broken side-elevation of I the support and gluingmechanism, with the reels and their coils in positions different fromFig. 1;

Fig. 3 is a perspective view of the latching device for thereel-support;

Fig. 4, a transverse sectional detail illustrating, the adiusting meansfor the reel-support; and

Fig. 5, a broken side-elevation bringing out the final step in thesplicing of the web.

Mounted to turn upon a support 106 is shown a coil B of pasteboard orother shell-material b which is to enter into the formation ofboxblanks. This is advanced continuously through the blanking apparatus,of which only portions are disclosed herein. As one of the steps in theproduction of the blanks, there is adhesively attached to the oppositemargins of its upper face a stay-web e, which may be of kraft or otherstrong paper delivered from a coil E and coated with glue at a mechanismJ. Through this mechanism, the stay-web is drawn and joins the shell-webat assembling mechanism 1, which has oppositely rotating rolls 362 and364 arranged to press the webs together to perfect the adhesion, and atthe same time to feed them forward for other operations. The presentinvention deals only with the manner of supporting, manipulating anddelivering the staylatch 1'78'pivoted upon the bracket and ur ed intoits retaining position by a spring 179, allow either arm to bemaintained uppermost. Extending horizontally from the outer extremity ofeach arm is a spindle 180, about which turns a reel 182 for thestay-material, the reel being removably retained in place by a screw 184threaded into the outer end of the spindle. To

- adjust the reels so the strips will run of! in the proper directionsand. register with the corresponding margin of the shell-material towhich they are to be applied, each arm 1'72 has a screw 186 threadedinto it-parallel to the axis, this screw having a head and finger-piece188 entering a slot 190 in the associated spindle. As the screw isrotated and, therefore, its head carried toward or from the arm 1'12,the reel-spindle is correspondingly shifted to create the desiredalinement. From the reel, the stay-material passes about a guide-roll326 and then travels in contact with the upper portion of a rotatableapplying roll 302 of the mechanism J, this being supplied with anadhesive from a trough 290 by a rotatable roll 300 deliveringto itslower portion. The under side of the strip e is thus coated for theattachment of the inner portion to the upper face of the shell-web b.

As illustrated in Fig. 1 of the drawings, the reel carrying the coil Eof stay-material which is being delivered to the shell-web b is at thetop of the support, retained by the latch 178. When the coil upon thisred is approaching exhaustion, the latch is lifted and the arms 172rotated in a counter-clockwise direction, the drawing-01f of the staycontinuing during this movement. A fresh coil E has been applied to thearm which was beneath but which is now raised. The end of this new coilof stay-material may have attached to it a glued connectingstrip 11 ofpaper. The strip e from the coil E 'enters the gluing mechanism Jbetween a pair of rolls 189, 189, the upper of which is shown asyieldably mounted upon pivoted arms 191- and urged toward its companioneither by gravity or a spring. Just before the end of the old coil isreached, the operator secures to it the extremity of the new coil by thepiece 11 (Fig. 2), and allows the thus-formed connection to pass throughthe rolls 189. The pressure of these rolls perfectsthe adhesion of theconnector and stay.

As the glued joint emerges from the rolls, the operator tears off theend of the old coil, removing the short piece which remains (Fig. 5).The end of the new coil travels on joined to the forward portion of theold coil. In such a splicing operation,- if the operator is skillful, hemay permit the whole of the old coil to run off its reel, connecting itsextreme end to the coil which replaces it. The delivery of stay tc theshell-web is thus continuous. There is shown. arranged to bear upon theupper coil of staymateriai, a brake device, to maintain the strip eunder tension. This may consist of an arm 192 pivoted on the frame andhaving a shoe 194 of felt or the like for contact with the periphery ofthe coil.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a blank-making apparatus, a support from which shell-material isdelivered. mechanism for advancing the delivered material, a rotatablecarrier arranged to receive a plurality of reels of stay materialpositioned for cooperation with the shell-material and to be applied tosaid shell-material during its advance, means for securing the carrierwith one reel in position for delivery to the shell-material anclanotherreel ready for transfer to the delivering position, and pressure meansthrough which the stay-material travels from the plural reels to theadvancing mechanism and prior to its application to the shell-material.

2. In a blank-making apparatus, a support from which shell-material isdelivered, mechanism for operating upon the deliveredmaterial, oppositerevoluble arms, a latch arranged to secure the arms in oppositepositions, a reel for stay-material for application to theshell-material rotatable upon each arm, and a pair of rolls betweenwhich the stay-material travels from one of the reels to an operatingmechanism and prior to its application to the shell-material.

3. In a blank-making apparatus; a support from which shell-material-isdelivered, mechanism for operatingupon the delivered material,

a rotatable carrier arranged to receive a plurality of reels ofstay-material to be applied to the shell-material, means for securingthe carrier with one reel in position for delivery of the shell-materialand another reel in position ready for transfer, and means arranged toadjust each reel individually transversely of the path of thestay-material into registration with the shellmaterial.

4. In a blank-making apparatus, a support from which shell-material isdelivered, mechanism for operating upon the delivered material, oppositerevoluble arms, a spindle projecting from each arm andbeing movabletherein, a reel rotatable about each spindle and arranged to carrystay-material for application to the shell-material, and means carriedby each arm and arranged to engage the corresponding spindle and move itlongitudinally.

5. In a blank-making apparatus, a support from which shell-material isdelivered, mechanism for operating upon the delivered material, oppositerevoluble arms, a spindle projecting from each arm and being movabletherein and provided with a slot, a reel rotatable about each spindleand arranged to carry stay-material for application to theshell-material, and a screw threaded into each arm and having a portionentering a corresponding spindle-slot.

6. The method of applying stay-material to -shell-material, whichconsists in continuously advancing a web of shell-material, interchangeably supporting two coils of stay-material, delivering the stay-materialfrom one coil and combining it with the shell-material until said coilapproaches exhaustion, reversing the positions of the coils ofstay-material while its delivery and combination with the shell-materialcontinues, and connecting the end of the unused coil of stay-material tothat advancing from the companion coil.

7. The method of app ying stay-material to shell-material, whichconsists in continuously advancing a web of shell-material,interchangeably supporting two coils of stay-material, delivering thestay-material from one coil and "com-- coil approaches exhaustion,reversing the positions of the coils of stay-material while its deliveryand combination with the shell-material continues, connecting the end ofthe unused coil of stay-material to that advancing from the companioncoil, and moving the coil of stay material transversely of the web ofshell-material to establish its registration therewith.

9. The method of splicing web-material during operations upon it, which.consists in interchangeably supporting two coils of web-material,delivering the web from one coil until it approaches exhaustion,reversing the position 01 the coils while delivery is maintained,connecting the end of the unused coil adhesively to the web advancingfrom the companion coil, subjecting the connection to the action ofpressure members, and severing the web between the con-- nection and thecompanion coil after said connection has passed the. pressure membersand during the continued advance.

CUTLER D. xNowL'roN.

